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d11086a939
On platforms where long double may have the same format as double
(-mlong-double-64), error and error_at_line do not take that into
account and might produce wrong output if a long double conversion is
requested by the format string ('%Lf'). This patch adds compatibility
functions for this situation and redirects calls via header magic.
Tested for powerpc, powerpc64 and powerpc64le.
64 lines
2.2 KiB
C
64 lines
2.2 KiB
C
/* Declaration for error-reporting function
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Copyright (C) 1995-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef _ERROR_H
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#define _ERROR_H 1
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#include <features.h>
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__BEGIN_DECLS
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/* Print a message with `fprintf (stderr, FORMAT, ...)';
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if ERRNUM is nonzero, follow it with ": " and strerror (ERRNUM).
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If STATUS is nonzero, terminate the program with `exit (STATUS)'. */
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extern void error (int __status, int __errnum, const char *__format, ...)
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__attribute__ ((__format__ (__printf__, 3, 4)));
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extern void error_at_line (int __status, int __errnum, const char *__fname,
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unsigned int __lineno, const char *__format, ...)
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__attribute__ ((__format__ (__printf__, 5, 6)));
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/* If NULL, error will flush stdout, then print on stderr the program
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name, a colon and a space. Otherwise, error will call this
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function without parameters instead. */
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extern void (*error_print_progname) (void);
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/* This variable is incremented each time `error' is called. */
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extern unsigned int error_message_count;
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/* Sometimes we want to have at most one error per line. This
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variable controls whether this mode is selected or not. */
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extern int error_one_per_line;
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#ifdef __LDBL_COMPAT
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# include <bits/error-ldbl.h>
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#else
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/* Do not inline error and error_at_line when long double has the same
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size of double, because that would invalidate the redirections to the
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compatibility functions. */
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# if defined __extern_always_inline && defined __va_arg_pack
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# include <bits/error.h>
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# endif
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#endif
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__END_DECLS
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#endif /* error.h */
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